sumBy: Sum variables in a dataframe by a set of factor levels

In wStockhausen/wtsUtilities: Collection of miscellaneous utility functions developed by William Stockhausen

Sum variables in a dataframe by a set of factor levels

Description

Sums variables in a dataframe by a set of factor levels. Uses getFactorLevels to identify the unique factor combinations in columns identified as factors.

Usage

sumBy(df, factors, vars, sortBy = NULL, ascending = TRUE)

Arguments

df	dataframe (or object that can be coerced to a dataframe) with variables to be summed and factor levels to be summed by
factors	vector of names of columns in df to serve as factors in the summations
vars	vector of names of column in df that should be summed
sortBy	vector of factor column names to sort results by
ascending	sort in ascending order

Details

None.

Value

a dataframe of results with columns corresponding to factors and vars

wStockhausen/wtsUtilities documentation built on March 16, 2024, 10:38 a.m.